16 81 x 2 July 8, 2019 16 32 64 128 16 81 x 2 3 Factorise 81 16 x 2 Evaluate 81 16 1 4 x 2 1 16 24 36 x 81 16 x y 2 81 x 2y 2 Factor 81 x 2 − 16 16 24 x 54 81 16 ×2=8 16 x 81
